It can be understood from the passage that, without a cut-off wall,
A) an earth dam would not be water- tight
B) it would be impossible to open sluices
C) only an earth dam can be constructed
D) a longer base would be essential for the functioning of an earth dam
E) there will be no water shortage
Protoplasm, which is the fundamental basis of life, is constantly undergoing physical and chemical
change. Life, therefore, is the resultant of these constantly occurring changes. There are two great
groups into which living things may be classified plants and animals. Both the plant and the animal
kingdoms are very extensive. It is customary, therefore, to regard the science of life under two
comprehensive heads, namely, botany which is the study of plants and zoology, which is the study of
animals. Both subjects are subdivided into various specialized sections.
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